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J. BIJUR. ENGINE STARTING DEVICEJ APPLICATION FILED JULY 7 1914 1,304,252. V Patented May 20,1919.

2 SHEETS-SHEET l- WITNESSES LHPP Qg INVENTOH w iiilawz MTORNEYS 1. BHUR.

ENGINE STARTING DEVICE. APPLICATION FILED JULY7,1914. I 1304;2232, v Patented May 20, 1919 2 SHEETS-SHEET 2- WITNESSES a: 3 /A/VENTOR Arm/mm STATES PATENT OFFICE.

JOSEPH mum, on NEW Yonx, N. Y., ASSIGNOB, BY MESNE Ass'IGNm-nnrs, we aim moron. summon courAN'Y, A conrom'rxon or nnmwnn.

moms sunrmo DEVICE.

Application filed July 7, 1814. Serlal'lio. 849,444.

To all whom it may concern:

Be it known that I, Josnrrr BIJUR, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain This invention relates to engine-starting apparatus, and with regard to certain more specific features, to an electricallyoperated j mechamsm adapted to set in rotation an engine inherently incapable of starting itself.

Amongthe objects of the inventlon are the provision of asiinple and effective mechanism for setting in rotation an engine shaft with, an automatic disconnection of the starting mechanism from the engine when the latter has started; the provision of compact and durable apparatus of this oha-racter which is at once inexpensive to construct and easily applied to new or Oldengiiies; and the provision of improvedenglne-starting apparatus'where the drive is efi'ected by a gripping action between. amotor-carryin pinion and a suitable rotating member 0 the engine, such as a fiy-wheel.

Other objects will be in art obvious and in part pointed out hereina 'r.

ter set forth, and the scope of the application of which will be indicated in the fol-' lowing claims- In the accompanyingdrawings wherein are illustrated one or more'of various'possible embodiments of the several features of" the invention:

of the motor;-

Simi rreferenoemharacters refer to 'simi--- Fig. 2 i's-an elevation of the apparatus of Fig.1, viewedfrom the commutator end" lar parts throughout the several views of the drawings;

Referring now to the drawings,- there is illustrated at 1 an electric motor mounted to swing-as a whole about the axis 2-, which may be termed the upper axis, while the motor and associated mechanism mounted upon and providedfor the support of this upper axis2 are adapted to swing in agenerally horizontal direction about the lower axis 3. It will thus be seen that the motor armature axis 4 may swing about the upper axis 2, or with no relative movement between these axes 4, 2, both may swing bodily about the lower axis 3. Movement of the motor 1 and upper axis 2 about the lower axis 3 in a clockwise direction (Fig. 2)' is ppsiti'vely prevented by the set-screw 5. 1 ovement ofthese parts in a counter-clockwise direction is resiliently opposed by a stron compression spring 6, the set-screw andt e sprmgcooperatin with the fixed base 7 of the bearing bloc 8. In the two bearing blocks 8, 9 rotates the. tube- 10 secured, as by the pins 11, 12, to the upwardly extending brackets 13, 14; and pivotally mounted adjacent the upper ends of these brackets are the studs 15, 16 formed on or secured to the motor casin centric studs 1-5, 16 and the brackets 13, 14, the motor 1, eccentric studs 15, 16, brackets 13, 14- and the tube 10 may swing as aunit about the lower axis 3 with theswinging movement limited on the one hand by the set-screw 5,- and' on the other hand by the compression spring. 6. With no pivotal movement of the-brackets 1'3, 14: about the lower axis 3, the motor 1 may swing upon its eccentric studs-15, 16 aboutthe upper axis v 2, toward and away from the engine-driven f-Figure 1 is a longitudinal elevation of a p preferred construction;

member represented in this case by a flywheel 17. This swingingof the motor as a" fl-y-wheell? and the motor-driven pinion 18, Fig; is an enlarvedxdetail of a preferred and is opposedby the tension sprin 19; and in case the armature axis 4 s ould swing downward until it is in the same horizontalplane as the upper axis 2, that is, un til it reaches what may be termed the'full togglep'ositiomits further movement couneccentric to the axis of the armaturesha t of the motor.. With no relative movement between the ec- The invention accordingly consists in the. featuresof construction, combinations of ele-' ments and arrangement of parts which will be exemplified in the construction he'reinaf- Patented May 20, 1919.

ter-clockwise (Fig. 2) is prevented because at this time the motor casing strikes the bearing blocks '8, 9. Movement of the motor clockwise about the upper axis 2 is limited by the motor pinion 18 striking against the segmental brake 20 secured, as by the leaf spring 21, to an upstanding portion of the bracket 12 at the commutator end of the motor.

Current is conveyed to the motor through the flexible leads 22 secured in the terminals 23 provided for the cables 24 leading to the other parts of the electrical system.

The adjustments are effected as follows: After the bearin blocks 8, 9 have been secured, as by the bolts 25, to a suitable part of the engine frame 26, the motor, when disengaged, should be approximately in the position indicated in Fig. 4, at the extreme clockwise limit of its travel about the upper axis 2, in which position it is held when deenergized by the tension spring '19 se cured at its opposite ends to the motor land to an ear 27 formed on the adjusting collar 28 secured, as by the pin 29, to the tube 10 for movement with the tube, brackets and associated parts about the lower axis 3. A counterweight 30 is provided to bring the center of mass of the parts swinging about the upper axis into approximate coincidence with said axis.

With the motor and engine at rest, the compression spring 6 holds the brackets 13, 14, tube 10 and motor frame 1 in the extreme clockwise position that this mechanism can assume; that is, with the adjustin set-screw 5 bearing against the fixed base Thisis the normal operating position of this mechanism with respect to the lower axis 3, and

ordinarily itis only for purposes of adjustment of the motor with respect to the fly-wheel that this angular position is ever changed; to effect such adjustment, necessitated, for instance, by the wearing away of the fiy-wheel or the motor pinion, or in installing the apparatus initially, the motor is swung about the lower axis 3, counter-clockwise toward the fly-wheel, or clockwise away from it,*by changing the setting of the adjust-ing screw 5, the compression spring 6 maintaining the set -screw resiliently but firmly against the fixed base 7, whatever the adjusted position of the mechanism may be. Aside from certain advantages attendant upon this resilient arrangement, it has been found that thecost of providing the setscrew 5 and compression spring 6 is less than would be the cost of providing any one of a number of other suitable adjusting devices which, however, would naturally come within the scope of the appended claims. When these adjustments have been "completed the motor in its disengaged position will be braked by having its pinion 18 in contact with the segmental brake 20, and when the motor pinion is engaged with the fiy-wheel the armature axis 4 will be closer to the horizontal plane of the upper axis 2, but will still be somewhat above that plane, since if the armature axis at in engaged position were in the horizontal plane of the upper axis 2, a full-toggle engagement would be effected with no tendency of the motor pinion to grip more tightly the fly-wheel in case the latter does not readily start. If the armature axis 4 should get below this horizontal plane of the upper axis 2 there will not only be no tendency toward tighter gripping with failure of the fly-wheel to start, but such failure to start would cause a further downward movement of the armature axis which would have the opposite and undesirable eifect of lessening the friction at the very time when it should be increased. While this arrangement 'of keeping the armature axis above the upper axis 2 is a preferred one, for the reasons stated, it.

will be obvious that many of the advanlows: With the fly-wheel 17 and motor 1 both atrrest, the motor will be held in its disengaged position, indicated in Fig. a, due

'to the force exerted by the tension spring 19. At such time the armature will be re siliently locked fromrotation by the segmental brake 20 attached to the bracket 13, so as to swing about the lower axis 3, but not about the upper axis 2. If new power be applied to the motor, there will be at once a tendency toward relative rotation of the armature carrying the braked pinion 18 and the field coils mounted in the motor casing or shell. In dynamo electric apparatus of the ordinary type, the fields are fixed in position and the armature readily revoluble, so that this tendency toward relative rotation of field and armature results simply in the rotation of the armature. In the present apparatus, on the other hand, the field is capable of rotation about the upper axis 2 in opposition simply to the force exerted by the tension spring 19. The result is, that the motor'field, shell and armature swing counter-clockwise as a whole about theupper axis 2 toward the flywheel 17, detaching'the motor pinion from the segmental armature accordingly rotates in a clockwise direction, as lndicated-by the arrow in Fig.

power-transmitting 2,. and ordinaril motor pinion an the friction between the fly-wheel is great enough to start the fly-wheel rotating 1n 9, counterclockwise direction, as indicated by the arrow in Fig. 2. If the fly-wheel resists rotation, the field coils move counter-clockwise a little farther to wedge the motor pinion more tightly against the fly-wheel until the fly-wheel must rotate, unless it is prevented some force greater than the starting torque of the motor. The extreme strains that might be encountered as the oscillating motor casing approaches fulbtoggle position are mitigated by torsion of the shaft 10 and by the resiliency of the several parts connecting the motor to the base.

With the starting of the fly-wheel there is a. practically instantaneous decrease in the power required from the motor, and while this decrease tends to allow the tensionspringto swing the. motor clockwise about the upper axis 2', to a position of disengagement, the parts are so proportioned and adjusted that such disengagement does'not occur until the motor torque is greatly reduced by the starting of the engine at ahigher speed under its own power.-

As many changes'could. be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description,

or shown in the accompanying drawings shallbe interpreted as illustrative and not in a limiting sense.

Having described my invention, what I I claim as new and desire to secure by Letters Patent is:

1. Apparatus of the class described, comprising, in combination, an engine-driven member, a motor-driven member radially offsettherefrom, and means adapted automatically to swing said second member into engagement with said first member about an axis whichis positioned from-the surface of said first member at a'distance greater than the length of the effective radius of said-second member.

2 Apparatus of the class described, comprising, in combination, an engine-driven member, a' motor, a motor-driven member, means mounting said motor to swing saidmotor-driven member into Wedging powertransmittin'g' relation to said first member upon said motor being started, and means adapted to'returnsaid motor with said second member upon said first member re-acting'thereon as the engine is started.

3. Apparatus of the characterdescribed comprising,in-combination, an engine. a motor adapted to start said engine, an enginediiven member,

of, said motor,

a motor-driven member,

to effect engagement between said members by the reaction between field and armature and means for retarding the starting of said armature.

5. Apparatus of the character described comprising, in' combination, an engine, a

motor adapted to start said engine, an

engine-driven member, a motor-driven member, an. eccentric mounting for said sec' ond member, means for swinging said second member about said mounting. into engagement with said first member by the reactionbetween field and armature of said motor, and means for retarding the starting of said armature whereby the eccentric movement ofsaid second member into engagement with said'first member is accelerated, said retarding means being ineffective when said members are in engagement,

6. Apparatus-of the character described comprising, in combination, an engine, a motor adapted to start said engine, an enginedriven member, a motor-driven member, an eccentric mounting for said second member, and means for bringing the center of mass of said eccentric portions into coincidence with the center of oscillation ofsaid nor-- 7. Apparatus of the character described comprising, in combination, an engine, a'motor adapted to start said engine, an enginedriven. member, a motor-driven member, means for engaging said members, and means for moving said motor-driven member toward and from'said engine-driven member-to adjust the relation between said members;

8. Apparatus of the character describedcomprising, in combination, an engine, a motor adapted to start said'engine, an engine driven member, a motor-driven member, means for engaging'said members,-a pivotal; support for said second member, and means for adjusting said memberabout its pivot.

9,- Apparatus. of the character described comprising,.in combination, an engine, a mo- (or adapted to start said engine, an engine driven: member, a motor-driven member, means for engaging said members, resilient means for holding'said mounting at a predetermined distance from said first member, and means for adjusting said distance.

10. Apparatus of the character. described. comprising, in combination, an engine, a momounting, means for adjusting said mounttor adapted to start said engine, an enginedriven member, a motor-driven member fiXed on the motor shaft, an eccentric mounting for said second member, means for engaging said members, a pivotal support for said mounting, and means for adjusting said mounting to vary the distance between said motor and said engine.

11. Apparatus of the character described comprising, in combination, an engine, a motor adapted to start said engine, an engine driven member, a motor-driven member fixed on the motor shaft, an eccentricmounting for said second member, ing said members, a pivotal support for said ing to vary the distance between said motor and said engine, and for limiting the movement of said second member toward said first member. v

12. Apparatus of the character described comprising, in combination, an engine, a motor adapted to start said engine, an enginedriven member, a motor-driven member fixed on the motor shaft, and means for engaging said members tion of power to said motor, said members being disengaged'automatically by the starting of the engine.- I a 13. Apparatus of the character described' comprising, in combination, an engine, a motor adapted to start said engine, an enginedriven member, a motordriven member, and means for engaging said members by the reaction between field and armature of said motor, said second member being returned to its initial position automatically by the starting of the engine.

14. Apparatus of the, character described comprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member, a motor-driven member, and means for swinging said secondmember into a toggle engagement with said first member.

15. Apparatus of the character described comprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member, a motor-driven member, and means for swinging said second member into a toggle engagementwith said first member by the relative rotation of field and armature, said rotation effecting thereafter the starting of the engine.

16. Apparatus of the character described comprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member, a motor-driven member, means for moving said second member into engagement .with said first member to start said engine, means opposing the movement of said second member into engagement with said first member, and means for limiting the engaging movement.

17. Apparatus of the character. described means for engagautomatically by the applicacomprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member, a motor-driven member, means for swinging said second memher into a toggle engagement with said first member, and means for preventing said second member from passing the full-toggle position.

18. Apparatus of the character described comprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member, a motor-driven member, means for moving said second member into engagement with said first member to start said engine, the starting of the engine effecting automatically the disengagement of said members, and means for limiting the disengaging movement.

19. Apparatus of thecharacter described comprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member, a motor-driven member, an. eccentric mounting for the motor, a pivotal support for said mounting, and a base for said support, flexible connections between'said motor and said base.

20. Apparatus. of the character described comprising, in combination, an engine, a

motor adapted to start said engine, an engine-driven member provided with circumferential grooves, a motor-driven member provided with circumferential grooves, means for effecting a frictional engagement between said members to start said engine, means for limiting the engaging movement, said members being disengaged automatically .when said engine has started, and means for limiting the disengaging move ment.

21. Apparatus of the character described comprising, in combination, an engine, a

motor adapted to start said engine, an en-- gine-driven member provided with circumferential grooves, a motor-driven member provided with circumferential grooves, means for effecting a frictional engagement between said members to start said engine, and a brake adapted to limit the disengaging movement of said second member and to retard the acceleration of said memberduring the next starting operation.

22. Apparatus of the character described comprising, in combination, an engine, a motor adapted to start said engine, an engine-driven member provided with circumferential grooves, a motor-driven member provided with circumferential grooves, means for moving the axis of said second member toward the axis of said'first mem her to effect engagement between said members, said members separatingautomatically when the engine is started, means for limiting the engaging movement, and. means for limiting the disengaging movement. r y

23. Apparatus ofthe character described .10 motor, said motor w 5 grooved pinion onthe armature shaft adapt-- ed to engagethe fiy-wheel't o start the enme, an eccentric mounting for the motor,

a brake adapted to retard the acceleration of said pinion when 'ower is applied to said en energized swinging toward said,fl :wheel by virtue of the rotatory reaction between its field andarmature to eflect engagement between said pinion and said fly-wheel, said brake being-inefiective' when the motor is in engaging position, said motor being returned automatically to disengaging position when the engine has start- 5 ed, said brake limiting 'the return eccentric movement of saidmotor, a pivotal support for said eccentric m0unting,'and means for adjusting the osition of said mounting with respect to said support.

24. In apparatus of the class described, in

combination, an engine, an electric motor,

2 meansadapted to lead current to said motor,

and normally disengaged power transmitting means between said engine and said motor adapted to be frictionally engaged simulsecond 'taneously with the starting of said motor,

said last mentioned means being disengaged automatically as the motor ceases to drive the engine, due to the increased counterelectro-motive force of the motor when the startingof the engine has been eifected.

25. In apparatus of the class described, in combination, an engine, an electric motor, means adapted-to lead current to said motor, a member driven by said engine, a rotatable member, and means co-aoting with said motor for moving at will said second member Qtransversely into frictional driving engagement with said first member and for rotatin said second member to rotate thereby said first member and said engine and for efiecting the return transverse movement of said member to disengage said members as the motor ceases to drive the engine, due tothe increased counter-electro-motive force of the motor when the starting of the engine.

has been efiected.

In testimony whereof I afiix my signature in the presence of two witnesses.

' I JOSEPH BIJUR.

- Witnesses:

' D. G. HAYNES, G. J. Knnnnne. 

